2009-08-02 17:32:10 +00:00
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//===- BlackfinISelLowering.h - Blackfin DAG Lowering Interface -*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the interfaces that Blackfin uses to lower LLVM code into a
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// selection DAG.
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//
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//===----------------------------------------------------------------------===//
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#ifndef BLACKFIN_ISELLOWERING_H
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#define BLACKFIN_ISELLOWERING_H
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#include "llvm/Target/TargetLowering.h"
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#include "Blackfin.h"
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namespace llvm {
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namespace BFISD {
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enum {
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FIRST_NUMBER = ISD::BUILTIN_OP_END,
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CALL, // A call instruction.
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RET_FLAG, // Return with a flag operand.
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Wrapper // Address wrapper
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};
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}
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class BlackfinTargetLowering : public TargetLowering {
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public:
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BlackfinTargetLowering(TargetMachine &TM);
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2009-08-11 20:47:22 +00:00
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virtual MVT::SimpleValueType getSetCCResultType(EVT VT) const;
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2010-04-17 15:26:15 +00:00
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virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
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2009-08-08 21:42:22 +00:00
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virtual void ReplaceNodeResults(SDNode *N,
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SmallVectorImpl<SDValue> &Results,
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2010-04-17 15:26:15 +00:00
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SelectionDAG &DAG) const;
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2009-08-02 17:32:10 +00:00
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ConstraintType getConstraintType(const std::string &Constraint) const;
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std::pair<unsigned, const TargetRegisterClass*>
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2009-08-10 22:56:29 +00:00
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getRegForInlineAsmConstraint(const std::string &Constraint, EVT VT) const;
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2009-08-02 17:32:10 +00:00
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std::vector<unsigned>
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getRegClassForInlineAsmConstraint(const std::string &Constraint,
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2009-08-10 22:56:29 +00:00
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EVT VT) const;
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2009-08-02 17:32:10 +00:00
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virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
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const char *getTargetNodeName(unsigned Opcode) const;
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unsigned getFunctionAlignment(const Function *F) const;
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private:
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2010-04-17 15:26:15 +00:00
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SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerADDE(SDValue Op, SelectionDAG &DAG) const;
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Major calling convention code refactoring.
Instead of awkwardly encoding calling-convention information with ISD::CALL,
ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering
provides three virtual functions for targets to override:
LowerFormalArguments, LowerCall, and LowerRet, which replace the custom
lowering done on the special nodes. They provide the same information, but
in a more immediately usable format.
This also reworks much of the target-independent tail call logic. The
decision of whether or not to perform a tail call is now cleanly split
between target-independent portions, and the target dependent portion
in IsEligibleForTailCallOptimization.
This also synchronizes all in-tree targets, to help enable future
refactoring and feature work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78142 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 01:29:28 +00:00
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virtual SDValue
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LowerFormalArguments(SDValue Chain,
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2009-09-02 08:44:58 +00:00
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CallingConv::ID CallConv, bool isVarArg,
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Major calling convention code refactoring.
Instead of awkwardly encoding calling-convention information with ISD::CALL,
ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering
provides three virtual functions for targets to override:
LowerFormalArguments, LowerCall, and LowerRet, which replace the custom
lowering done on the special nodes. They provide the same information, but
in a more immediately usable format.
This also reworks much of the target-independent tail call logic. The
decision of whether or not to perform a tail call is now cleanly split
between target-independent portions, and the target dependent portion
in IsEligibleForTailCallOptimization.
This also synchronizes all in-tree targets, to help enable future
refactoring and feature work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78142 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 01:29:28 +00:00
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const SmallVectorImpl<ISD::InputArg> &Ins,
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DebugLoc dl, SelectionDAG &DAG,
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2010-04-17 15:26:15 +00:00
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SmallVectorImpl<SDValue> &InVals) const;
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Major calling convention code refactoring.
Instead of awkwardly encoding calling-convention information with ISD::CALL,
ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering
provides three virtual functions for targets to override:
LowerFormalArguments, LowerCall, and LowerRet, which replace the custom
lowering done on the special nodes. They provide the same information, but
in a more immediately usable format.
This also reworks much of the target-independent tail call logic. The
decision of whether or not to perform a tail call is now cleanly split
between target-independent portions, and the target dependent portion
in IsEligibleForTailCallOptimization.
This also synchronizes all in-tree targets, to help enable future
refactoring and feature work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78142 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 01:29:28 +00:00
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virtual SDValue
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2010-02-02 23:55:14 +00:00
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LowerCall(SDValue Chain, SDValue Callee,
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2010-01-27 00:07:07 +00:00
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CallingConv::ID CallConv, bool isVarArg, bool &isTailCall,
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Major calling convention code refactoring.
Instead of awkwardly encoding calling-convention information with ISD::CALL,
ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering
provides three virtual functions for targets to override:
LowerFormalArguments, LowerCall, and LowerRet, which replace the custom
lowering done on the special nodes. They provide the same information, but
in a more immediately usable format.
This also reworks much of the target-independent tail call logic. The
decision of whether or not to perform a tail call is now cleanly split
between target-independent portions, and the target dependent portion
in IsEligibleForTailCallOptimization.
This also synchronizes all in-tree targets, to help enable future
refactoring and feature work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78142 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 01:29:28 +00:00
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const SmallVectorImpl<ISD::OutputArg> &Outs,
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const SmallVectorImpl<ISD::InputArg> &Ins,
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DebugLoc dl, SelectionDAG &DAG,
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2010-04-17 15:26:15 +00:00
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SmallVectorImpl<SDValue> &InVals) const;
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Major calling convention code refactoring.
Instead of awkwardly encoding calling-convention information with ISD::CALL,
ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering
provides three virtual functions for targets to override:
LowerFormalArguments, LowerCall, and LowerRet, which replace the custom
lowering done on the special nodes. They provide the same information, but
in a more immediately usable format.
This also reworks much of the target-independent tail call logic. The
decision of whether or not to perform a tail call is now cleanly split
between target-independent portions, and the target dependent portion
in IsEligibleForTailCallOptimization.
This also synchronizes all in-tree targets, to help enable future
refactoring and feature work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78142 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 01:29:28 +00:00
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virtual SDValue
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LowerReturn(SDValue Chain,
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2009-09-02 08:44:58 +00:00
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CallingConv::ID CallConv, bool isVarArg,
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Major calling convention code refactoring.
Instead of awkwardly encoding calling-convention information with ISD::CALL,
ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering
provides three virtual functions for targets to override:
LowerFormalArguments, LowerCall, and LowerRet, which replace the custom
lowering done on the special nodes. They provide the same information, but
in a more immediately usable format.
This also reworks much of the target-independent tail call logic. The
decision of whether or not to perform a tail call is now cleanly split
between target-independent portions, and the target dependent portion
in IsEligibleForTailCallOptimization.
This also synchronizes all in-tree targets, to help enable future
refactoring and feature work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78142 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 01:29:28 +00:00
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const SmallVectorImpl<ISD::OutputArg> &Outs,
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2010-04-17 15:26:15 +00:00
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DebugLoc dl, SelectionDAG &DAG) const;
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2009-08-02 17:32:10 +00:00
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};
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} // end namespace llvm
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#endif // BLACKFIN_ISELLOWERING_H
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